How much does a cheap train ticket from Portsmouth to Southampton cost?

The average train ticket price from Portsmouth to Southampton is $30. The best way to find cheap train tickets from Portsmouth to Southampton is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

How long is the trip from Portsmouth to Southampton?

A train trip between Portsmouth and Southampton is around 47m, although the fastest train will take about 30m. This is the time it takes to travel the 25 km that separates the two cities.

How many daily trains are there between Portsmouth and Southampton?

The number of trains from Portsmouth to Southampton can differ depending on the day of the week. On average, there are 20. Some trains are direct while others include transferring trains. Simplify your train trip from Portsmouth to Southampton by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Portsmouth to Southampton?

When taking the train from Portsmouth to Southampton, you can travel comfortably and safely with South Western Railway, Great Western Railway, Southern.

Train Portsmouth to Southampton from $20

Next train departures

Next departures for Portsmouth to Southampton on November 26
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:46pm	Portsmouth and Southsea	32m	4:18pm	Swanwick	Cheapest
Train	4:46pm	Portsmouth and Southsea	31m	5:17pm	Swanwick	Fastest
Train	8:00am	Portsmouth and Southsea	49m	8:49am	Southampton Airport Parkway	No tags
Train	8:27am	Portsmouth and Southsea	40m	9:07am	Southampton Central	No tags
Train	8:00am	Portsmouth and Southsea	49m	8:49am	Southampton Airport Parkway	No tags

Next departures for Portsmouth to Southampton on November 28
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:46am	Portsmouth and Southsea	31m	8:17am	Swanwick	CheapestFastest
Train	7:24am	Portsmouth and Southsea	42m	8:06am	Southampton Central	No tags
Train	7:29am	Portsmouth and Southsea	55m	8:24am	Southampton Airport Parkway	No tags
Train	7:29am	Portsmouth and Southsea	55m	8:24am	Southampton Airport Parkway	No tags
Train	8:27am	Portsmouth and Southsea	40m	9:07am	Southampton Central	No tags

Next departures for Portsmouth to Southampton on November 29
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:46am	Portsmouth and Southsea	31m	8:17am	Swanwick	CheapestFastest
Train	7:27am	Portsmouth and Southsea	41m	8:08am	Southampton Central	No tags
Train	7:46am	Portsmouth and Southsea	1h	8:46am	Southampton Central	No tags
Train	8:32am	Portsmouth and Southsea	59m	9:31am	Southampton Central	No tags
Train	7:46am	Portsmouth and Southsea	1h	8:46am	Southampton Central	No tags

Next departures for Portsmouth to Southampton on November 30
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:42am	Portsmouth and Southsea	30m	8:12am	Swanwick	Cheapest
Train	7:42am	Portsmouth and Southsea	30m	8:12am	Swanwick	Fastest
Train	7:22am	Portsmouth and Southsea	1h 2m	8:24am	Southampton Airport Parkway	No tags
Train	7:52am	Portsmouth and Southsea	58m	8:50am	Southampton Central	No tags
Train	9:14am	Portsmouth and Southsea	41m	9:55am	Southampton Central	No tags

Next departures for Portsmouth to Southampton on December 1
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:46am	Portsmouth and Southsea	31m	8:17am	Swanwick	CheapestFastest
Train	7:24am	Portsmouth and Southsea	42m	8:06am	Southampton Central	No tags
Train	7:29am	Portsmouth and Southsea	55m	8:24am	Southampton Airport Parkway	No tags
Train	7:29am	Portsmouth and Southsea	55m	8:24am	Southampton Airport Parkway	No tags
Train	8:27am	Portsmouth and Southsea	40m	9:07am	Southampton Central	No tags

Next departures for Portsmouth to Southampton on December 2
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:46am	Portsmouth and Southsea	31m	8:17am	Swanwick	Cheapest
Train	7:46am	Portsmouth and Southsea	31m	8:17am	Swanwick	Fastest
Train	7:24am	Portsmouth and Southsea	42m	8:06am	Southampton Central	No tags
Train	7:29am	Portsmouth and Southsea	55m	8:24am	Southampton Airport Parkway	No tags
Train	7:29am	Portsmouth and Southsea	55m	8:24am	Southampton Airport Parkway	No tags

Last refresh of the prices: Yesterday at 4:38 PM GMT.

Compare 3 ways to go from Portsmouth to Southampton

We recommend taking the bus

Among the sustainable travel choices, the bus stands out as a good way to reach Southampton. The journey takes about 55 minutes, and with fares starting at just $11, it presents an excellent value for a comfortable ride.

5bus per day

55mAverage Duration

25 kmDistance

1kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$11 - $15	Average Duration55m	CO₂ emissions 1kg CO₂e
Train	Average Price$21 - $51	Average Duration47m	CO₂ emissions 1kg CO₂e
Carpool	Average Price$6 - $6	Average Duration30m	CO₂ emissions 1kg CO₂e

Train companies

South Western Railway

4/525 reviews

Staff4.5

Timeliness4.1

Cleanliness4.5

Wifi3.4

Great Western Railway

4/542 reviews

Staff5

Timeliness4.7

Cleanliness4.7

Wifi4

Southern

4/534 reviews

Staff5

Timeliness5

Cleanliness5

Wifi5

GB train and bus companies:Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

Frequently asked questions about travelling from Portsmouth to Southampton by train

How much does a cheap train ticket from Portsmouth to Southampton cost?
The average train ticket price from Portsmouth to Southampton is $30. The best way to find cheap train tickets from Portsmouth to Southampton is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!
How long is the trip from Portsmouth to Southampton?
A train trip between Portsmouth and Southampton is around 47m, although the fastest train will take about 30m. This is the time it takes to travel the 25 km that separates the two cities.
How many daily trains are there between Portsmouth and Southampton?
The number of trains from Portsmouth to Southampton can differ depending on the day of the week. On average, there are 20. Some trains are direct while others include transferring trains. Simplify your train trip from Portsmouth to Southampton by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from Portsmouth to Southampton?
When taking the train from Portsmouth to Southampton, you can travel comfortably and safely with South Western Railway, Great Western Railway, Southern.

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

11-24

$19

11-25

$20

Today

$20

11-27

$20

11-28

$20

11-29

$20

11-30

$20

12-01

$20

The cheapest trip from Portsmouth to Southampton was searched and found on Nov 24, 2025 with a price of $19

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Portsmouth to Southampton, as early as possible.

You can expect to pay from $19 to $49 for a train ticket from Portsmouth to Southampton based on the last 2 days. You can expect to find the cheapest price for the trip at $20 which is on 2025-11-30.